It seems the only way to build higher is to knock out the previous foundation.pic.twitter.com/Vb62cLUru7
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@St_Rev his thing is it takes ~40 years for a new tech to get fully used, and fully destroy replaced techs
@sarahdoingthing It takes ~80 years for a new generation to fully destroy replaced humans. Don't usually use that wording though.
@St_Rev I still don't see your objection
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